Wind-motor.



No. 871,024.. PATENTED NOV. 12, 1907. J. W. BEATBS.

WIND MOTOR.

APPLICATION FILED NOV. 6, 1906...

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A TTOHNE Y8 No. 871,024. PATENTED NOV. 12, 1907.

J. W. BEATES.

WIND MOTOR.

APPLICATION FIgFI) NOV. e, 1906.

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JAMES W. BEATES, OF DENVER, COLORADO.

WIN D-MOTOR Specification of Letters Patent,

Patented Nov. 12, 1907.

Application filed November 6,1906. Serial No. 342,231.

To all whom it may concern:

Be it known that 1, JAMES W. BEATES, a citizen of the United States, anda resident of Denver, in the county of Denver and State of Colorado,have invented a new and Improved Wind-\iotor, of which the following isa full, clear, and exact description.

The object of the invention is to provide a new and improved wind motor,arranged to utilize the motive power of the wind to the fullestadvantage by varying the length of the stroke of the pump rod accordingto the velocity of the wind.

The invention consists of novel features and parts and combinations ofthe same which will he more fully described hereinafter and then pointedout in the claims.

A practical embodiment of the invention is repre sented in theaccompanying drawings forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure 1 is a side elevation of the improvement; Fig. '2 is an enlargedrear side elevation of the strokechanging mechanism, parts being brokenout; Fig. 3 is an enlarged transverse section of the same on the line 33of Fig. 5; Fig. 4 is an enlarged sectional side elevation of the same onthe line 4-4 of Fig. 5, and Fig. 5 is a plan view of the same.

The frame-work A of the motor is mounted to turn in the usual manner ona tower or other support, and on the said frame-work A is mounted thewind wheel shaft B carrying the wind wheel O of any approvedconstruction. On the wind wheel shaft B is secured a pinion D in meshwith a gear wheel D mounted to turn on a stud D carried by the frame A,and the said gear wheel D forms a crank wheel and is connected by apitman E with a cross head F mounted to slide on a swing'arm G pivotallyconnected at its free end with the pump rod H of a pump or othermechanism actuated by the wind motor.

The cross head F is pivotally connected by links I with nuts J screwingon the right and left hand screw threads of a screw rod K mounted toturn in suitable bearings arranged on the frame A, the axis of the screwrod K coinciding with the axis of the swing arm G iulcrumed on the frameA. On one end -of the screw rod is a bevel gear wheel L in mesh with asegmental bevel gear wheel L secured on a rock shaft L j ournaled on theframe A and carrying a vane N under pressure of the wind whenever thewind wheel 0 is in the wind. On the rock shaft L is secured a earn 0engaged at its periphery by a block P mounted to slide verticallyin'suitable bearings A arranged on the frame A, and the said block P ispressed on by springs Q in a downward direction, to insure a returnrocking movement of the rock shaft L on a decrease of the pressure ofthe wind. The frame A is provided with the usual vane R for holding thewind wheel 0 and the vane N in the wind. f

The operation is as follows: Assuming that the parts of thestroke-changing mechanism are in the position illustrated in thedrawings and thewindis blowing at a normally moderate velocity. Now whenthe velocity of the wind increases the vane N is swung rearward in thedirection of the arrow a, so that the rock shaft-L is turned and thesegmental gear wheel L turns the pinion L and screw rod K to move thenuts J simultaneously outward and fromeach other, whereby the links Ishift the block F on the swing arm G towards the latters fulcrum. Now asthe stroke of the pitman E is uniform but the cross head F is movednearer to the axis of the arm G, it is evident that a longer stroke isgiven to the swing arm G- and consequently to the pump rod H. When therock shalt L is rocked by the action of the vane N as above described,then an upward swinging movement is given to the cam 0, so that thelatter raises the block P against the tension of its springs Q, and whenthe velocity of the wind decreases then the springs Q under tension andacting on the block P cause a return swinging movement of the cam 0,rock shaft L and vane N, whereby the screw rod K is turned in theopposite direction and consequently the nuts J move towards each otherand by the links I shift the cross head F outward on the arm G, that is,away from the axis thereof, so that the stroke of the swing arm G andthat of the pump rod H is correspondingly decreased.

From the foregoing it will be seen that on an increase of the velocityof the wind the stroke of the pump rod H is increased, and on thedecrease of the velocity of the wind the stroke of the pump rod iscorrespondingly decreased, and hence in a strong wind the liftingcapacity of the pump actuated by the wind motor is correspondinglyincreased.

It is understood that in a wind motor working with a constant load, thework done varies only as the first power of the wind velocity, whilewhen the load is increased with increasing velocity of the wind, theefficiency increases faster than the square of the velocity, and with anideal or perfect wind motor the efliciency would increase as the cube ofthe velocity. Now by the arrangement described the increase in thestroke of the pump rod increases the load, and the decrease of thestroke diminishes the load, and as the stroke varies in proportion tothe increase and decrease of the velocity of the wind it is evident thatthe motive power of the wind is utilized to the fullest advantage.

The improvement can be readily used with any kind of wind mill having anopen wheel ora solid wheel, it being understood that the lengtheningand'shortening of the stroke of the pump rod is independent of therotation of the wind wheel and the usualdriving gear, such, forinstance, as shown and consisting of the pinion D, gear wheel D andpitman E, or the usual crank arm directly on the wheel shaft andconnected with the pumprod either directly or bya pitman.

The construction of the stroke-varying device may be greatly changedwithout deviating from my invention, hence I do not limit myself to thedetail construction shown.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

1. A wind motor having a stroke changing device comprising a swing arm,a cross head movable on the said arm, a screw rod having a right handand a left hand thread thereon, nuts carried by the screw rod. means.for connecting the nuts with said cross head, and means controlled bythe velocity of the wind for actuating said screw rod.

2. A wind motor having a stroke changing device comprising arm, a screwrod having a right hand and a left hand thread thereon, nuts carried bythe screw rod, means for connecting the nuts with said cross head, avane controlled by the pressure of the wind, and a driving connectionbetween the said vane and the screw rod,

The combination with awind motor, its driving gear, and a pump rod, of astroke changing device comprising a swing arm connected with the pumprod, a cross head movable on the said arm, a screw rod having a righthand and a left hand thread thereon, hearings on the framc of the motorin which the screw rod is mounted to turn, nuts carried by the screwrod, links connecting the nuts with said cross head, a vane underpressure of the wind, and

means for turning the screw rod from said vane to change the position ofthe cross head on the swing arm according to the velocity of the Wind.

4, The combination with a wind motor, its driving and the pump rod, of avariable mechanism interposed between the driving gear of the motor andthe pump rod, the said variable mechanism comprising a swing arm, a

cross head movable on ,the swing arm, a screw rod, bearings on the motorframe in which said screw rod is mounted to turn, means actuated by themovement of the screw rod and connected with the said cross head to movethe same on the said swing arm, a vane under pressure of the wind, anda'driving connection between thesaid vane and the screw rod.

The combination with a wind motor, its driving gear and the pump rodactuated by the motor, of a variable mechanism interposed between thedriving gear of the motor and the pump rod, a vane under pressure of thewind, a rock shaft carrying said vane, means con-nected with the rockshaft for controlling the said variable mechanism in one direction, acam secured on said rock shaft, and a spring actuated device engagingsaid cam for returning the rock shaft and vane and actuating the saidvariable mechanism in a reverse direction,

6. A wind motor having a stroke changing device comprising a swing arm,a cross head mounted to slide on said swing arm, a screw rod having aright hand and a left hand thread thereon, nuts carried by said screwrod, connections between the said nuts and the cross head, a pinion onthe said screw rod, a rock shaft, a segmental gear wheel carried by saidrock shaft. and in mesh with the said pinion, and a device underpressure of the wind and connected with the said rock shaft.

r. A wind motorhaving a stroke changing device comprising a swing arm, across head mounted to slide on the i said swing arm, a screw 'rod havinga right hand and a 7 left hand thread thereon, nuts carried by saidscrew rod, connections between the nuts and the said cross head, a

pinion on the said screw rod, a rock shaft, a segmental a swing arm, across head movable on said swing gear wheel carried by said rock shaftand in mesh with the said pinion, a device under pressure of the windand connected with the said rock shaft, and a spring pressed deviceconnected with the said rock shaft for imparting a return movementthereto.

8. 'A wind motor having a stroke changing device com prising a swingarm, a cross head mounted to slide on the said swing arm, a screw rodhaving a right hand and a left hand thread thereon, nuts carried by saidscrew rod, connections between the nuts and the said cross head, apinion on the said screw rod, a rock shaft, a segmental gear wheelcarried by said rock shaft and in mesh with said pinion, a device underpressure of the wind and connected with the said rock shaft to turn thesame in one direction, a spring controlled block, bearings on the frameof the'motor in-which said block is mounted to-slide, and a cam on therock shaft for moving said block against the tension of its spring, thesaid block under tension of its spring imparting a return movement tothecam and rock shaft.

9. A wind motor having a stroke-changing device comprising a swing arm,a pump rod with which said swing arm is connected, a cross head mountedto slide on the said swing arm, a screw r'od having a right hand and aleft hand thread thereon and carrying nuts, links connecting the nutswith the said cross head, a pinion on the said screw rod, a rock shaftcarrying a segmental gear wheel in mesh with the said pinion, and a vaneunder pressure of the wind and connected withthe said rock shaft.

10. A wind motor having a stroke-changing device comprising a swing arm,a pump rod with which the swing arm is connected, a cross head mountedto slide on the said swing arm, a screw rod having a right hand and aleft hand thread thereon and carrying nuts, links can necting the nutswith the said cross head, a pinion on the said screw rod, a rock shaftcarrying a segmental gear wheel in mesh with the said pinion, a vaneunder pressure of the wind and connected with the said rock shaft, and aspring-pressed device connected with the said rock shaft for imparting areturn movement thereto.

11. A wind motor having a stroke-changing device comprising a swing arm.a pump rod with which the swing arm is connected, a cross head mountedto slide on the said swing arm, a screw rod having a right hand and aleft hand thread thereon and carrying nuts, links connecting the nutswith the said cross head, a pinion on the said screw rod, a rock shaftcarrying a segmental gear wheel in mesh with the said pinion, a vaneunder pressure of the wind and connected with the said rock shaft, a camon the said rock shaft, and a spring pressed block-engaging the saidcam.

'12. The combination with a wind wheel, its shaft, a pinion on saidshaft, and a gear wheel in mesh with said pinion, of a pitman connectedwith said gear wheel, a cross head connected with said pitman, a swingarm extending through said cross head and on which the latter is mountedto slide, the said swing arm being fulcrumed at one end, a deviceconnected with the other end of the swing arm to be actuated thereby,and a vane controlled'mechanism for changing the position of the crosshead on the swing arm.

13. The combination with a wind motor, its shaft and mechanism actuatedby the wind motor, of a stroke changing device interposed between themotor shaft and the said mechanism for changing the stroke of thelatter, the said stroke changing device comprising a cross head, meansconnecting said cross head with the motor shaft, 2. swing arm extendingthrough said cross head and on which the latter is mounted to slide, thesaid swing arm being fulcrumed at one end and connected at its other endwith the mechanism actuated by the motor, and a vane controlledmechanism connected with the cross head for changing the position of thelatter on the swing arm.

14. A wind motor havinga stroke changing device comprising a swing arm,a cross head movable on the said arm, a rod, hearings in which the rodis mounted to turn, means actuated by the movement of the rod andconnected with the cross head to move the same on the swing arm andmeans controlled by the velocity of the wind for actuating said .rod.

15. A wind motor having a stroke changing device com prising a swingarm, a cross head mounted to slide on said swing arm, a rock shaft,mechanism actuated by the rock shaft for moving the cross head on saidswingarm, and a device under pressure of the wind and connected with thesaid rock shaft.

16. A Wind motor having a stroke changing; device comprising a. swingarm, a cross head mounted to slide on said swing arm, a vane underpressure of the wind, 21 rock 10 shaft carrying said vane, mechanismactuated by the rock specification in the presence of two subscribingwitnesses. 15

JAMES iv. BEATES.

Witnesses A. V. Gnocn, E. 'l. BURNS.

